Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 2 December 2021

‹ 01.12.2021 2021 03.12.2021 ›

Photosphere sunspot drawing and RDS evaluation

02.12.2021 photosphere drawing

High-resolution scan (3237 px)

Time
07:18 UT
Observer
Burçin TANIK
g
3
f
14
R
44
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXI – 12Group 1 · BXI – 12 Group 2 · AX_ – 1Group 2 · AX_ – 1 Group 3 · HH_ – 1Group 3 · HH_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=2.12.2021
Saat=07:18
Gözlemci=Burçin TANIK
KontrolEden=Olcay PLEVNE
Durumaçısı=15.52
Enlemaçısı=0.72
Boylamaçısı=173.79
Boylamfark=3
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=-0.7
Sırano=19333
AyRasatNo=2
RasatÖnceki=01.12.2021
RasatSonraki=03.12.2021

[Leke Grupları]
Grupsayısı=3:1:2
LekeSayısı=14:12:2
RölatifSayı=44:22:22
01=BXI 12 +19.361 +22.710 195.861 +0.000 0000 0 +21.526 +24.855 +17.197 +19.287 +19.361 +24.655 +19.361 +19.487
02=AX_ 01 -26.360 +74.636 248.426 -1.000 0000 0 -26.123 +75.464 -26.596 +73.808
03=HH_ 01 -23.585 +67.929 241.719 -1.000 0000 0 -22.767 +69.198 -24.404 +66.659
20211202.gzd

Chromosphere (H-α) FITS frames

H-α

The images are made automatically with a fixed, gentle rule: uneven illumination and most of the limb darkening are removed, and the brightness is shown on a linear scale (no sharpening); prominences get their own scale outside the limb. Frames are ordered by sharpness (seeing); frames without the Sun (darks, bias) come last. Method →

2021/20211202_bto · BTO · 6 frames · 128.6 MB · 07:22:47–07:32:00 UT

07:24:49 UT · 40 ms 07:26:25 UT · 50 ms 07:30:26 UT · 40 ms 07:32:00 UT · 60 ms · over-exposed 07:22:47 UT · 70 ms · over-exposed 07:28:15 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.